Generalizing the measurement postulate in quantum mechanics
The measurement postulate is crucial to quantum mechanics. If we measure a quantum system, we can only get one of the eigenvalues of the measured observable, such as position, energy and so on, with a probability. Immediately after the measurement, t.....»»
Scientists create the thinnest lens on Earth, enabled by excitons
Lenses are used to bend and focus light. Normal lenses rely on their curved shape to achieve this effect, but physicists from the University of Amsterdam and Stanford University have made a flat lens of only three atoms thick that relies on quantum e.....»»
Researchers apply quantum computing methods to protein structure prediction
Researchers from Cleveland Clinic and IBM have recently published findings in the Journal of Chemical Theory and Computation that could lay the groundwork for applying quantum computing methods to protein structure prediction......»»
Research team shows theoretical quantum speedup with the quantum approximate optimization algorithm
In a new paper in Science Advances, researchers at JPMorgan Chase, the U.S. Department of Energy's (DOE) Argonne National Laboratory and Quantinuum have demonstrated clear evidence of a quantum algorithmic speedup for the quantum approximate optimiza.....»»
Amazon’s Memorial Day sale has a 75-inch QLED TV under $900
The 75-inch Vizio Quantum Pro 4K QLED TV is on sale from Amazon with a $102 discount for Memorial Day, bringing the massive screen's price down to only $898......»»
Quantum Internet Demonstrations Debut in Three Cities
It’s a “big deal” to demonstrate entangled quantum networks outside a lab.....»»
Researchers describe spin-boson systems to configure quantum devices
Many of today's quantum devices rely on collections of qubits, also called spins. These quantum bits have only two energy levels, the "0" and the "1." However, spins in real devices also interact with light and vibrations known as bosons, greatly com.....»»
First topological quantum simulator device in strong light-matter interaction regime to operate at room temperatures
Researchers at Rensselaer Polytechnic Institute have fabricated a device no wider than a human hair that will help physicists investigate the fundamental nature of matter and light. Their findings, published in the journal Nature Nanotechnology, coul.....»»
Quantum photonic technologies set to be more reliable with new interferometer
An increasing number of emerging quantum applications operate using optical technologies. Essentially, photons carry information at the speed of light and over long distances, making them good candidates for fast and secure communications and quantum.....»»
Streamlined microcomb design provides control with the flip of a switch
Light measurement devices called optical frequency combs have revolutionized metrology, spectroscopy, atomic clocks, and other applications. Yet challenges with developing frequency comb generators at a microchip scale have limited their use in every.....»»
The tunable coupling of two distant superconducting spin qubits
Quantum computers, computing devices that leverage the principles of quantum mechanics, could outperform classical computing on some complex optimization and processing tasks. In quantum computers, classical units of information (bits), which can eit.....»»
New quantum dot approach can enhance electrical conductivity of solar cells
A team led by Professor Jongmin Choi of the Department of Energy Science and Engineering has developed a PbS quantum dot that can rapidly enhance the electrical conductivity of solar cells. The findings are published in the journal Small......»»
Scientists discover single atom defect in 2D material can hold quantum information at room temperature
Scientists have discovered that a "single atomic defect" in a layered 2D material can hold onto quantum information for microseconds at room temperature, underscoring the potential of 2D materials in advancing quantum technologies......»»
Saturday Citations: Mediterranean diet racks up more points; persistent quantum coherence; vegan dogs
This week, we reported on the birth throes of black holes, the questionable assertions of a study about vegan dogs and a technique for observing entanglement without breaking quantum coherence......»»
Researchers realize multiphoton electron emission with non-classical light
Strong field quantum optics is a rapidly emerging research topic, which merges elements of non-linear photoemission rooted in strong field physics with the well-established realm of quantum optics. While the distribution of light particles (i.e., pho.....»»
Researchers develop world"s smallest quantum light detector on a silicon chip
Researchers at the University of Bristol have made an important breakthrough in scaling quantum technology by integrating the world's tiniest quantum light detector onto a silicon chip. The paper, "A Bi-CMOS electronic photonic integrated circuit qua.....»»
Tracing the history of perturbative expansion in quantum field theory
Perturbative expansion is a valuable mathematical technique which is widely used to break down descriptions of complex quantum systems into simpler, more manageable parts. Perhaps most importantly, it has enabled the development of quantum field theo.....»»
Scientists demonstrate the survival of quantum coherence in a chemical reaction involving ultracold molecules
If you zoom in on a chemical reaction to the quantum level, you'll notice that particles behave like waves that can ripple and collide. Scientists have long sought to understand quantum coherence, the ability of particles to maintain phase relationsh.....»»
Coupling quantum mechanical simulations and AI paves way for screening new superconductors
Superconductors are materials that conduct electricity without resistance and are essential for several technological advancements, which include medical imaging and energy-efficient technology. However, most known superconductors operate under extre.....»»
Researchers call for a new measurement of time for tunneling particles
In an amazing phenomenon of quantum physics known as tunneling, particles appear to move faster than the speed of light. However, physicists from Darmstadt believe that the time it takes for particles to tunnel has been measured incorrectly. They pro.....»»
Method milestone for quantum physics: Rapid test for topological 2D materials
Topological quantum materials are hailed as a cornerstone of future technological advancements. Yet, validating their exceptional qualities has always been a lengthy process......»»